Cooler.



PATENTED JUNE 26, 1906.

D MGR. LIVINGSTON.

COOLER.

APPLICATION FILED N 2 SHE'ETSSHEI ST 1 lNVENTOf? fl .r/ifgigal iv as kwPATENTED JUNE 26, 1906.

D- McR. LIVINGSTON.

COOLER.

APPLICATION FILED NOV. 25, 1905.

2 SHEETS-SHEET 2 A TTOH iUhIiZ-FED th i l-FEES D McRA Livrnosron,

on NEW roan, n.

CQDLER.

Patented June 26, 1908.

To all whom it may concern:

Be it known teat I, D MoRA LIVINGSTON, a citizen of the United States,and a resident of the city of New York, borough of Manhattan, in thecounty and State of New York, have invented a new and Improved Cooler orSimilar Apparatus, of which the following is a full, clear, and exactdescription.

The invention is more particularly intended for the coolers ofmotor-vehicles propelled by explosive-engines.

' The resent invention consists in a cooler having lapped oints at theside edgesformed by means of return-bent or inwardly-projecting portionsformed along the o posite edges of one plate or wall andoutwardlyrojecting plain portions on the two side e ges of the cornanion plate or wall of the conduit throu h W 'ch the fluid to be cooledpasses. In or or that the hooked edge ortions may be formed, I produceslits at t e angles, as

, will be fully explained hereinafter.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is an elevation, partly in 'section, of a cooler embodying mypresent invention. Fig. 2 is an enlarged cross-section taken on the line2 2 of Fig. 1. Fig. 3 represents an enlarged detail section taken on theline 3 3 of Fig. 1. Fig. 4 represents an enlarged detail section takenon the line 4 4 of Fig. 1.-

Fig. 5 is a fragmentary pers ective view showing a pair of corrugatedplhtes prior to the bending of the hooked portions. Fig. 6 is aperspective view illustrating the embodiment of my invention in aform ofcooler composed of complete tube instead of corrugated plates. Fig. 7is,a longitudinal sectional view through a cooler of the form shown inFig. 6. Fig. 8 is a sectional elevation illustrating the embodiment ofmy invention in a cooler in which the conduits are arran ed to produce adiamond design-that is, wit the bends of the conduit diagonal to thevertical and horizontal. Fig. 9'is an enlarged cross-section taken onthe line 9 9'of Fig. 8, and Fig. 10 is a fragmentary detail view of oneof the walls shown in Figs. 8 and 9.

In the form shown in Figs. 1 to 5 the conduits are corrugated so as toproduce three sides of a square, said sides ran ing alternatelyvertically and horizonta ly. Each conduit is formed of a pair of platesA B,

-tions of which are expanded, as usual.

I having, respectively, return bends or hooks a and outwardly-projectingplain portions 5. The respective plates are effect at the side edges insuch a way as to bringadj scent conduits into close contact at the sideedges; but as the special manner of offsetting and forming the sideedges does not form part of the present invention aside from the factthat the hooked portions are on both edges of one plate and the plainportions on both edges of the other late the descriptionwill be confinedto t e manner of forming the returnbends. Thus, referring moreparticularly to Fig. 5, it will be seen that the plates'A and B havebeen corrugated and that the former is wider than the latter, thesideedges rojecting beyond the plate B. In order t at the projectingedges of the plate may be returned to reduce the inwardly-projectinghooks b, I rorm slits a at the an les of the corrugations, whereby thethree sides marked a? in this figure may be independently bent to theform shown in Figs. 2, 3, and. 4.

In the form shown in Figs. 6 and 7 the cooler is formed of the tubes 0,theend por- In my invention certainsides of the expanded ends of thetubes are projected, as at c, Fig. 7, whereby they may be bent inwardly,as at c, to engage an outwardly-projecting plain edge portion 0 of anadjacent tube. It will be seen that each short run or section ofa'conduit O is formed by the adjacent walls of adjacent tubes, and, asshown best in Fig. 7, one of said walls is formed with hooks c on bothends, while the opposite walls of the conduit have plain edges 0 on bothends, which are enga ed by said hooks.

. In the form shown in Figg. 8, 9, and 10 the side edges of the plates Dare formed, re spectively, with hooks d and plainportions d insubstantially the same manner as described in the forms shown in Figs. 1to 5, except that the flanging of the side edges is roduced on diagonallines, as indicated at d in Fig. 8, the flanged edge being slitted atthe angles, as at (i In all the forms it will be observed that theconduits have bends forming circuitous passages for the fluid to becooled.

Having thus described my invention, I claim as new and desire to secureby Letters Patent.

1. A cooler or like apparatus having pairs of walls forming conduitsafiording a c1rcui tous passage for the fluid to be cooled, one of saidwalls having at both side edges retumoutwardly-dis osed plain portionsat bothbends or hooked portions engagingouh edges enga e by the hooks ofthe companwerdlyprojectin ain portions formed on opposite sides 0 thecompanion well, hhe 5 s1 of the Wall on which the hooks are the hookedportions.

e edges v formed being slit between said hooks.

with hooks being ion plate, t e side edges of the plate formed I5 slitat the angles between In, testimony whereof I have.- signed. my

2.. A cooler composed of separate corruname to this specification in thepresence of gated plates assembled in pairs and producing; twosubscriljihgwitnesses.

conduits efiordin circuitous passages for. the 10 fluid tobe cooled, oneof. said pleteshevin on its two sidb-edges-Ieturn-bends or-hookeportions, andi-the companion plateheving l D MoRA LIVINGSTON. 4

Witnesses:

EVERARD B MARsHALn, J. L, MGAULI'FFE.

